JP7093651B2 - Mounting structure of vehicle interior materials - Google Patents

Description

The present invention relates to a mounting structure of a vehicle interior material, and more particularly to a structure in which a vehicle interior material is mounted on a vehicle body panel by using a bolt penetrating a bolt fixing portion of the vehicle interior material.

Vehicle interior materials such as pillar trims are transported to a vehicle assembly plant with bolts temporarily held, and are attached to a vehicle body panel using the temporarily held bolts at the assembly plant.
In the mounting structure of the vehicle interior material disclosed as the prior art in FIG. 6 of Patent Document 1 below, a bolt insertion hole is formed in the bolt fixing portion of the vehicle interior material, and the bolt is inserted into the bolt insertion hole. It is temporarily held by attaching a retaining washer from the outside of the vehicle to the shaft.

Japanese Unexamined Patent Publication No. 2000-337341

In the mounting structure of the vehicle interior material disclosed in FIG. 6 of Patent Document 1, the retaining washer mounted on the shaft portion of the bolt for temporary holding of the bolt is made of paper or resin in a thin plate shape. , The force to hold the bolt is relatively weak. Therefore, the bolt may fall off from the vehicle interior material due to an impact or the like when the vehicle interior material is attached.

In order to solve the above problems, the mounting structure of the vehicle interior material of the present invention includes a bolt fixing portion formed integrally with the vehicle interior material, and the vehicle interior material is provided with a bolt penetrating the bolt fixing portion. In the structure in which the bolt is fixed to the vehicle body panel, the bolt fixing portion has a slit extending linearly and a pair of engaging convex portions formed on a surface of the vehicle interior material on the vehicle interior side.
The slit has an open end at one end and has a narrow portion having a width narrower than the diameter of the shaft portion of the bolt in the middle portion in the extending direction. The pair of engaging protrusions are arranged at least in the inner portion of the slit in the vicinity of both side edges of the slit, and have engaging grooves on the sides facing each other.
The slit can receive the shaft portion of the bolt from the open end through the narrow portion to the inner portion thereof, the shaft portion of the bolt enters the inner portion of the slit, and the large diameter portion of the bolt is formed. By entering the engaging groove of the pair of engaging protrusions, the bolt is temporarily held by the bolt fixing portion.

According to the above configuration, since the narrow portion of the slit locks the shaft portion of the bolt, it is possible to prevent the bolt from coming off from the open end of the slit, and the engaging groove of the engaging convex portion engages with the large diameter portion of the bolt. Since it fits, it is possible to prevent the bolt from coming off in the axial direction. As a result, the bolt can be temporarily held firmly and can be prevented from falling off due to an impact. In addition, the retaining washer can be omitted.

Preferably, the engaging convex portion extends along the slit and has an L-shaped cross section, and has an upright portion protruding from the vehicle interior side surface of the vehicle interior material at a position away from the side edge of the slit. It has a facing portion that faces the side edge vicinity portion of the slit, and the engaging groove is formed between the facing portion and the side edge vicinity portion.

Preferably, the vehicle interior material is a pillar trim, the bolt fixing portion is formed at the lower end thereof, the slit extends in the vertical direction, and the upper end thereof is the open end, and the vicinity of the side edge of the slit. A raised portion is formed on the surface of the vehicle interior material on the vehicle interior side of the portion at the position of the open end of the slit or the middle portion in the extending direction thereof.
According to the above configuration, for example, when a curtain airbag arranged above the pillar trim is deployed and a downward impact is applied to the pillar trim, the raised portion hits the large diameter portion of the bolt and becomes a resistance. It is possible to prevent the bolt from coming off from the open end of the slit, and by extension, prevent the pillar trim from falling off from the vehicle body panel.

Preferably, the bolt has a flange portion as a large diameter portion formed at one end of the shaft portion and a hexagonal head formed on the opposite side of the shaft portion adjacent to the flange portion. The head is arranged with a gap between the facing portions of the pair of engaging protrusions.
According to the above configuration, the tip of the bolt tightening tool can be inserted into the gap between the head of the bolt and the facing portion of the engaging convex portion, so that the tool can be inserted into the head of the bolt held by the bolt fixing portion. Bolts can be screwed into the body panel using a fitting and tool.

According to the present invention, it is possible to provide a mounting structure for a vehicle interior material in which temporarily held bolts are prevented from falling off.

It is a front view of the pillar trim to which the mounting structure of the vehicle interior material according to the embodiment of the present invention is applied from the vehicle interior side, and shows the state of being mounted on the pillar panel. It is an enlarged perspective view which looked at the bolt fixing part in the pillar trim in the state which was attached to a pillar panel from the front on the vehicle interior side. It is an enlarged front view of the bolt fixing part of the pillar trim as seen from the passenger compartment side. It is an enlarged front view of the bolt fixing part in the pillar trim in the state where the bolt is temporarily held, as seen from the passenger compartment side. It is a top view of the cut portion along the VV line of FIG. FIG. 5 is an end view of a cut portion similar to FIG. 5 of the bolt fixing portion of the pillar trim, and shows a case where a tool for tightening the bolt is to be fitted to the head of the bolt in the process of mounting the pillar trim to the pillar panel.

Hereinafter, the mounting structure of the vehicle interior material according to the embodiment of the present invention will be described with reference to FIGS. 1 to 6. The mounting structure of this embodiment is applied to a structure in which the pillar trim of the vehicle is mounted on the pillar panel.

The pillar trim 1 (vehicle interior material) exemplified in this embodiment shown in FIG. 1 is on the right seat side, includes a pillar trim main body 10 and a jump stand 20, and is a pillar panel shown only in FIGS. 5 and 6. It extends in the vertical direction along the passenger compartment side of 2 (body panel).
Hereinafter, unless otherwise specified, the pillar trim 1 is assumed to be mounted on the pillar panel 2.

The jump table 20 is provided on the upper part of the pillar trim main body 10. The jump table 20 of this embodiment is formed separately from the pillar trim main body 10 by injection molding a resin such as polypropylene, and is assembled to the pillar trim main body 10. The jump table 20 may be integrally formed with the pillar trim main body 10.

The jump table 20 has a guide wall 21, and the guide wall 21 has a slope that inclines downward from the outside of the vehicle toward the passenger compartment side (from the back side to the front side of the paper in FIG. 1). Above the guide wall 21, a curtain airbag (not shown) is arranged so as to extend in the vehicle length direction in a folded state. In the event of a side collision of the vehicle, gas is injected into the curtain airbag, and the curtain airbag is guided by the guide wall 21 while expanding, pushing open the bag lining (not shown), and is deployed like a curtain in the vehicle interior. ..

The pillar trim main body 10 is formed by injection molding a resin such as polypropylene, and has a front wall 11 facing in the vehicle width direction (direction orthogonal to the paper surface in FIG. 1) and a front wall 11 connected to the front wall 11 in the vehicle length direction. It has a front wall 12 facing forward and a rear wall 13 connected to the front wall 11 and facing rearward in the vehicle length direction, and has a U-shaped cross section. At the lower end 10A of the pillar trim 10, the front wall 11 is retracted to the outside of the vehicle in the vehicle width direction (the back side of the paper in FIG. 1), and the front wall 12 and the rear wall 13 are retracted inward.

As shown in FIG. 1, in the lower end portion 10A of the pillar trim main body 10, the front wall 11 is formed with two engaging holes 11a and 11b separated in the vehicle length direction, and the front wall 12 and the rear wall 13 are formed with two engaging holes 11a and 11b. , Notches 12a and 13a are formed, respectively. These engaging hole portions 11a and 11b and the notch portions 12a and 13a are used for connecting to a pillar trim lower member (not shown, but with reference numeral 30 for convenience of explanation). At the time of connection, the upper end portion of the pillar trim lower member 30 is overlapped with the lower end portion 10A of the pillar trim main body 10 from the vehicle interior side. Engagement protrusions provided on the pillar trim lower member 30 are inserted into the engagement holes 11a and 11b, and the pillar trim lower member 30 is positioned with respect to the pillar trim main body 10. The hooking claws provided on the pillar trim lower member 30 are hooked to the notches 12a and 13a, and the pillar trim main body 10 and the pillar trim lower member 30 are connected to each other.

In the lower end portion 10A of the pillar trim main body 10, the front leg portion 40 and the rear leg portion projecting downward at positions separated from the front side and the rear side in the vehicle length direction below the engagement holes 11a and 11b, respectively. 50 is provided integrally with the pillar trim main body 10.

In the mounting structure of the pillar trim 1 to the pillar panel 2 having the above configuration, on the back surface of the pillar trim 1 (the surface on the outer side of the vehicle in the vehicle width direction), one upper portion and the front leg portion 40 and the rear side leg portion 50 at the lower portion. Two places are fixed to the pillar panel 2.
A well-known fixing means (not shown) is used for fixing the pillar panel 2 to the above-mentioned one place on the upper part of the pillar trim 1. As the fixing means, a general clip, bolt, or the like may be used.

Next, the fixing of the front leg portion 40 to the pillar panel 2 will be described.
As shown in FIG. 1, the front leg portion 40 is fixed to the pillar panel 2 by a clip 60. The front leg portion 40 is provided with a clip seat 41 projecting to the outside of the vehicle (in the back side of the paper in FIG. 1) in the vehicle width direction, and the seat plate portion 42 on the tip end side thereof extends from the central portion to the lower portion. A clip mounting hole 42a is formed. A well-known clip 60 is attached to the clip mounting hole 42a from below and fixed at the upper end portion. The tip end side (the outside of the vehicle in the vehicle width direction) of the clip 60 is fitted into the clip locking hole (not shown) of the pillar panel 2 in a well-known manner, so that the clip 60 is fixed to the pillar panel 2.

Next, the fixing of the rear leg portion 50 to the pillar panel 2 will be described.
As shown in FIG. 1, the rear leg 50 is fixed to the pillar panel by bolts 70. As shown in FIGS. 2, 5, and 6, the bolt 70 used in this embodiment has a hexagonal head portion 71 and a shaft portion 72. The shaft portion 72 has a flange portion 72a (large diameter portion), a body portion 72b, and a screw portion 72c from the base end on the head 71 side toward the tip end. The flange portion 72a has a larger diameter than the head portion 71. The diameter of the shaft portion 72 decreases in the order of the flange portion 72a, the body portion 72b, and the screw portion 72c.

The rear leg portion 50 will be described. As shown in FIG. 1, the posterior leg portion 50 has an upper leg portion 50A and a lower leg portion 50B, and extends downward from the front leg portion 40. The lower leg portion 50B is located below the clip seat 41 of the front leg portion 40. The thin plate-shaped portion of the lower leg portion 50B is the bolt fixing portion 51. As shown in FIG. 5, the lower end surface 50x of the upper leg portion 50A has an end portion on the outer side of the vehicle in the vehicle width direction connected to the bolt fixing portion 51. The lower end surface 50x is formed with an opening 50y for passing the bolt 70 from above (the back side of the paper surface in FIG. 5) to the bolt fixing portion 51 side.

As shown in FIG. 3, the bolt fixing portion 51 is formed with a slit 52 that penetrates the intermediate portion in the vehicle length direction in the vehicle width direction and extends linearly in the vertical direction. The upper end of the slit 52 is an open end 52a, and the lower end is in a semicircular shape. The width of the slit 52 is formed to be large enough to accept the body portion 72b of the bolt 70.

As shown in FIG. 2, in the bolt fixing portion 51, the opening edge of the slit 52 on the vehicle interior side protrudes toward the vehicle interior side and forms a seat surface support portion 53. As shown in FIG. 3, the side walls 52b and 52b of the slit 52 facing each other in the vehicle length direction are provided with bulging portions 52c and 52c that gently project in the vehicle length direction in the middle of the vertical direction, respectively. ing. Between these bulging portions 52c and 52c, there is a narrowed portion 52d having a narrow width in the slit 52. The narrow portion 52d is formed to be narrower than the diameter of the body portion 72b of the bolt 70.

As shown in FIGS. 2 and 3, a pair of engaging convex portions 54, 54 are provided on the surface of the bolt fixing portion 51 on the vehicle interior side. The engaging protrusions 54 and 54 are provided at positions separated from both side edges of the slit 52 on the vehicle interior side in the front and rear directions in the vehicle length direction, respectively. Each engaging convex portion 54 extends in the vertical direction along the slit 52, extends upward from the open end 52a of the slit 52, and reaches substantially the same position as the lower end of the slit 52.

As shown in FIG. 5, each engaging convex portion 54 has an L-shaped cross section, and has an upright portion 54a protruding from the surface of the bolt fixing portion 51 on the vehicle interior side toward the vehicle interior, and the upright portion 54a. It has an opposed portion 54b protruding from the tip end portion on the vehicle interior side of the bolt fixing portion 51 toward the center in the vehicle length direction. Each facing portion 54b faces the side edge vicinity portion 51a, which is a region between the outside of the standing portion 54a in the vehicle length direction and the slit 52. An engaging groove 54c is formed between the facing portion 54b and the side edge vicinity portion 51a. The two engaging grooves 54c and 54c face each other in the vehicle length direction, and are formed so as to be able to accept the flange portion 72a of the bolt 70, respectively.

As shown in FIGS. 2 and 3, each engaging convex portion 54 is provided with reinforcing ribs 55 and 56 at an intermediate portion and a lower portion in the vertical direction. The reinforcing ribs 55 and 56 connect the facing portion 54b, the outside of the standing portion 54a, and the bottle fixing portion 51, respectively. The reinforcing rib 55 has an inclined surface 55a on the slit 52 side. The reinforcing rib 56 has an inclined surface 56a on the slit 52 side.
The inclined surfaces 55a and 56a are inclined toward the outside of the vehicle in the vehicle width direction toward the slit 52 in the vehicle length direction.

Temporary holding of the bolt 70 and fixing to the pillar panel 2 by the bolt 70 in the rear leg portion 50 having the above configuration will be described.
As shown in FIG. 4, in the rear leg portion 50, the bolt 70 is temporarily held by the bolt fixing portion 51 in advance so that the pillar trim 1 can be attached to the pillar panel 2 smoothly and easily. be able to.

In order to temporarily hold the bolt 70, the bolt 70 is moved from the back side of the upper leg portion 50A of the rear side leg portion 50 (outside the vehicle in the vehicle width direction) through the opening 50y of the lower end surface 50x thereof (see FIG. 5). It is assembled to the bolt fixing portion 51. At this time, as shown by the imaginary line in FIG. 4, the slit 52 receives the body portion 72b of the bolt 70 from the open end 52a. Further, the flange portion 72a of the bolt 70 is accepted in the engaging groove 54c of the pair of engaging convex portions 54.

As shown in FIG. 4, when the bolt 70 is moved toward the inner portion of the slit 52, the body portion 72b of the bolt 70 approaches the inner portion while sliding on the bulging portion 52c. At this time, the bolt fixing portion 51 is elastically deformed and the slit 52 is widened. When the body portion 72b of the bolt passes through the narrow portion 52d between the bulging portions 52c and 52c, the bolt fixing portion 51 elastically returns, and the assembly of the bolt 70 to the bolt fixing portion 51 is completed. The width of the narrow portion 52d and the elasticity of the bolt fixing portion 51 are set so that the operator can assemble the bolt 70 with his / her fingers. In a state where the bolt 70 is assembled to the bolt fixing portion 51 (see FIG. 5), the head 71 of the bolt 70 has a gap g, g between the facing portions 54b, 54b of the pair of engaging convex portions 54, 54. Arranged through.

As shown in FIG. 4, the bolt 70 is temporarily held by the bolt fixing portion 51 in a state where the body portion 72b of the bolt 70 reaches the inner portion of the slit 52. Unlike the conventional technique, a retaining washer is not required.

The rear leg portion 50 is fixed to the pillar panel 2 by the bolt 70 by the bolt fixing portion 51. As shown in FIGS. 1, 2, and 5, the body portion 72b of the bolt 70 is located behind the narrow portion 52d of the slit 52 (see FIG. 3) and is located behind the slit portion 52, and the body portion of the flange portion 72a. The threaded portion 72c of the bolt 70 is screwed into the screwed portion 2a of the pillar panel 2 in a state where the seating surface on the 72b side is in contact with the seating surface support portion 53 and the bolt 70 is supported. As a result, the bolt fixing portion 51 is fixed to the pillar panel 2, and the rear leg portion 50 is fixed to the pillar panel 2.

As shown in FIGS. 2 to 3, the open ends 52a of the slit 52 are on the surface of the seat surface support portion 53 on the vehicle interior side, which are the portions near the side edges of the slit 52 in the bolt fixing portion 51. A pair of raised portions 57, 57 are provided at the positions of. Each raised portion 57 projects toward the vehicle interior side with respect to the seat surface supporting portion 53. The protruding height of each raised portion 57 is set to a height that does not interfere with the flange portion 72a engaged with the engaging groove 54c when the bolt 70 is assembled to the bolt fixing portion 51. As shown in FIG. 2, the lower edge 57a of the raised portion 57 is slightly separated from the outer peripheral edge of the flange portion 72a of the bolt 70 screwed into the pillar panel 2. The lower edge 57a has an inclination close to the outer peripheral shape of the flange portion 72a.

For example, when a strong downward impact is applied to the pillar trim 1 such as the curtain airbag (not shown) deployed above the jump table 20, the pillar trim 1 is pushed downward. At this time, the lower edge 57a of the raised portion 57 hits the outer peripheral edge of the flange portion 72a of the bolt 70 and becomes a resistance. As a result, it is possible to prevent the bolt 70 from coming out of the slit 52 and the pillar trim 1 from falling off from the pillar panel 2.

Next, the work of mounting the pillar trim 1 on the pillar panel 2 will be described.
Normally, the bolt 70 is temporarily held by the pillar trim 1 by the method described above before the pillar trim 1 is transported to the assembly factory where the mounting work is performed.
At the assembly plant, the upper portion of the pillar trim 1 is first fixed to the pillar panel 2 by the fixing means (not shown) described above. Next, the lower end portion 10A of the pillar trim 1 is fixed to the pillar panel 2 in the order of the front leg portion 40 and the rear leg portion 50.

In order to fix the front leg portion 40 to the pillar panel 2 by the clip 60, the clip 60 attached to the clip seat 41 is fitted into the clip locking hole (not shown) of the pillar panel 2. At this time, the formed portion of the clip seat 41 on the front leg portion 40 is struck from the vehicle interior side toward the pillar panel 2.

The impact force generated by hitting the front leg portion 40 into the formed portion of the clip seat 41 reaches the rear leg portion 50 rearward in the vehicle length direction from the clip seat 41 via the front wall 11 and is transmitted to the bolt fixing portion 51. At this time, even if the bolt 70 temporarily held by the bolt fixing portion 51 moves upward, the narrow portion 52d of the slit 52 locks the body portion 72b of the bolt 70, so that the bolt 70 moves from the open end 52a of the slit 52. It is possible to prevent it from slipping out. Further, since the flange portion 72a of the bolt 70 is engaged with the engaging groove 54c of the engaging convex portion 54, it is possible to prevent the bolt 70 from coming off in the axial direction thereof.

After the fixing work of the front leg portion 40 by the clip 60 is completed, the rear leg portion 50 of the pillar trim 1 is fixed to the pillar panel 2 by using the bolt 70. When the upper part of the pillar trim 1 and the front leg 40 are fixed to the pillar panel 2, as shown in FIG. 6, the pillar trim 1 is twisted and deformed, so that between the rear leg 50 and the pillar panel 2. There is a slight gap G in.
The bolt 70 temporarily held by the bolt fixing portion 51 is moved from the inner part of the slit 52 shown in FIG. 4 to the fixing position of the bolt 70 shown in FIG. 2 above. At this time, the threaded portion 72c of the bolt 50 passes through the gap G (FIG. 6) between the rear side leg portion 50 and the pillar panel 2.

As shown in FIG. 6, at the fixed position of the bolt 70, the bolt 70 is screwed into the screwed portion 2a of the pillar panel 2 while pushing the bolt 70 toward the pillar panel 2. At this time, since a gap g is formed between the head 71 of the bolt 70 and the facing portion 54b of the engaging convex portion 54, the tip of the bolt tightening tool 3 is inserted into the gap g to insert the head 71. The bolt 70 can be screwed in using the tool 3. Further, since the inclined surface 55a of the reinforcing rib 55 is inclined toward the slit 52, the tip of the tool 3 is guided toward the head 71 of the bolt 70, and the tool 3 is directed to the head 71. It is easy to fit. By screwing the bolt 70 into the screwed portion 2a of the pillar panel 2, the bolt fixing portion 51 of the rear leg portion 50 is fixed to the pillar panel 2, and the pillar trim 1 is attached to the pillar panel 2.

After the pillar trim 1 is attached to the pillar panel 2, the upper end portion of the pillar trim lower member 30 (not shown) is overlapped and connected to the lower end portion 10A of the pillar trim 1 from the passenger compartment side by the method described above. As a result, the clip seat 41 and the bolt fixing portion 51 arranged at the lower end portion 10A of the pillar trim 1 are shielded from the vehicle interior by the pillar trim lower member 30, and are not visible from the vehicle interior.

The present invention is not limited to the above embodiment, and various modifications can be adopted without departing from the gist thereof.
The pair of engaging convex portions 54, 54 need to be arranged at least in the portions near both side edges 51a, 51a of the slit in the inner portion of the slit 52.
In the above embodiment, in the seat surface support portion 53, the raised portion 57 is provided at the position of the open end 52a of the slit 52, but it may be provided in the middle portion in the extending direction of the slit 52.
The bolt is not limited to the above embodiment, and may have a large diameter portion engaged with the engaging groove 54c of the engaging convex portion 54 and a shaft portion accepted by the slit 52.
A bolt fixing portion may be provided on the front leg portion, and a clip seat may be provided on the rear leg portion.
The bolt fixing portion may be provided at an end portion other than the lower end portion of the pillar trim.
The vehicle interior material is not limited to the pillar trim, and may be various vehicle interior materials such as a roof side trim, a door trim, and an instrument panel.

The present invention can be applied to a structure in which a vehicle interior material is attached to a vehicle body panel.

1 Pillar trim (vehicle interior material)
2 Pillar panel (body panel)
10A Lower end of pillar trim body 51 Bolt fixing part 51a Side edge vicinity part 52 Slit 52a Open end 52d Narrow part 54 Engaging convex part 54a Standing part 54b Opposing part 54c Engaging groove 57 Raising part 70 Bolt 71 Head 72 Bolt shaft Part 72a Flange part (large diameter part of bolt)
g gap

Claims (3)

In a structure in which a bolt fixing portion formed integrally with a vehicle interior material is provided, and the vehicle interior material is mounted on a vehicle body panel by a bolt penetrating the bolt fixing portion.
The vehicle interior material is a pillar trim, and the bolt fixing portion is formed at the lower end portion thereof.
The bolt fixing portion has a slit extending linearly and a pair of engaging convex portions formed on a surface of the vehicle interior material on the vehicle interior side.
The slit extends in the vertical direction, the upper end thereof becomes an open end, and has a narrow portion having a width narrower than the diameter of the shaft portion of the bolt in the middle portion in the extending direction.
The pair of engaging protrusions are arranged at least in the vicinity of both side edges of the slit in the inner part in the extending direction from the open end of the slit, and have engaging grooves on the sides facing each other.
The slit can accept the shaft portion of the bolt from the open end to the inner portion via the narrow portion.
The shaft portion of the bolt enters the inner portion of the slit, and the large diameter portion of the bolt enters the engaging groove of the pair of engaging convex portions, whereby the bolt is temporarily held by the bolt fixing portion.
The vehicle interior is characterized in that a raised portion is formed on the surface of the vehicle interior material in the vicinity of the side edge of the slit on the vehicle interior side at the position of the open end of the slit or the middle portion in the extending direction thereof. Material mounting structure. In a structure in which a bolt fixing portion formed integrally with a vehicle interior material is provided, and the vehicle interior material is mounted on a vehicle body panel by a bolt penetrating the bolt fixing portion.
The bolt fixing portion has a slit extending linearly, a pair of engaging convex portions formed on a surface of the vehicle interior material on the vehicle interior side, and a reinforcing rib for reinforcing the engaging convex portions.
The slit has an open end at one end and has a narrow portion having a width narrower than the diameter of the shaft portion of the bolt in the middle portion in the extending direction.
The pair of engaging protrusions are arranged at least in the vicinity of both side edges of the slit in the inner part in the extending direction from the open end of the slit, and have engaging grooves on the sides facing each other.
The engaging convex portion extends along the slit and has an L-shaped cross section, and has an upright portion protruding from the vehicle interior side surface of the vehicle interior material at a position away from the side edge of the slit, and the slit. It has an opposing portion that faces the side edge vicinity portion, and the engaging groove is formed between the facing portion and the side edge vicinity portion.
The reinforcing rib is provided on the outside of the upright portion and the facing portion, and has an inclined surface inclined toward the slit.
The slit can accept the shaft portion of the bolt from the open end to the inner portion via the narrow portion.
The bolt is temporarily held by the bolt fixing portion by entering the shaft portion of the bolt into the inner portion of the slit and the large diameter portion of the bolt into the engaging groove of the pair of engaging convex portions. The mounting structure of the vehicle interior material is characterized by this. The engaging convex portion extends along the slit and has an L-shaped cross section, and has an upright portion protruding from the vehicle interior side surface of the vehicle interior material at a position away from the side edge of the slit, and the slit. The vehicle according to claim 1, wherein the vehicle has a side edge near portion and a facing portion facing each other, and the engagement groove is formed between the facing portion and the side edge vicinity portion. Installation structure of interior materials.

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